package com.hmall.api.item.fallback;

import com.hmall.api.item.ItemClient;
import com.hmall.api.item.dto.ItemDTO;
import com.hmall.api.item.dto.OrderDetailDTO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.openfeign.FallbackFactory;
import org.springframework.stereotype.Component;

import java.util.Collection;
import java.util.Collections;
import java.util.List;

/**
 * TODO
 *
 * @Author mr.zhao
 * @Date 2025/6/18 11:34
 */
@Component
@Slf4j
public class ItemClientFallbackFactory implements FallbackFactory<ItemClient> {
	@Override
	public ItemClient create(Throwable cause) {
		return new ItemClient() {
			@Override
			public List<ItemDTO> queryItemByIds(Collection<Long> ids) {
				log.error("远程调用ItemClient#queryItemByIds方法出现异常,参数: {}",ids,cause);
				cause.printStackTrace();
				//查询购物车允许失败,查询失败,返回空集合
				return Collections.emptyList();
			}

			@Override
			public void deductStock(List<OrderDetailDTO> items) {
				log.error("远程调用ItemClient#deductStock扣减库存失败,参数: {}",items,cause);
			}

			@Override
			public void rollbackStock(OrderDetailDTO dto ) {
				log.error("远程调用ItemClient#rollbackStock回滚库存失败,参数: {}",dto,cause);
			}
		};
	}
}
